Old shower curtain?

Torn holes at the top?

Mold at the bottom?

Getting ready to replace it?

Here's what you can do with it:

After washing it with bleach, take it with you the next time you go on a picnic, put it down first to keep the blanket dry.

And then there is always the idea...
Use it to cover things when you are painting or crafting.

Just a thought.